WO2017113606A1 - Integrated hydraulic cylinder having telescoping function and swinging function and application thereof - Google Patents

Integrated hydraulic cylinder having telescoping function and swinging function and application thereof Download PDF

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Publication number
WO2017113606A1
WO2017113606A1 PCT/CN2016/084698 CN2016084698W WO2017113606A1 WO 2017113606 A1 WO2017113606 A1 WO 2017113606A1 CN 2016084698 W CN2016084698 W CN 2016084698W WO 2017113606 A1 WO2017113606 A1 WO 2017113606A1
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cylinder
piston rod
hydraulic cylinder
piston
telescopic
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PCT/CN2016/084698
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French (fr)
Chinese (zh)
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曾庆良
许德山
万丽荣
逯振国
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山东科技大学
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Publication of WO2017113606A1 publication Critical patent/WO2017113606A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement

Definitions

  • the invention relates to an integrated hydraulic cylinder with a telescopic and swinging function and an application thereof, and belongs to the technical field of hydraulic cylinders.
  • the hydraulic cylinder is hydraulic energy into mechanical energy, linearly reciprocating movement (or swing movement) of the hydraulic actuators. It is simple in structure and reliable in operation. When it is used to realize the reciprocating motion, the speed reducing device can be eliminated, and there is no transmission gap, and the motion is stable, so it is widely used in various mechanical hydraulic systems . At present, the two movements of the hydraulic cylinder telescopic and swing must be completed using two cylinders, which increases the manufacturing cost of the hydraulic cylinder and takes up a large space. Most of the current telescopic and rotating mechanisms are electric or pneumatic, and the forces and moments obtained in a limited space are not large enough. Because the compressibility of the gas is too large, the mechanism of the pneumatic swing is usually not accurately positioned.
  • Chinese Patent Publication No. CN202220769U discloses a telescopic rotary hydraulic cylinder including a cylinder block, a piston and a piston rod, and a piston rod is arranged on both sides of the piston, and the piston is disposed between at least one piston rod and the cylinder block.
  • the rotary guiding device comprises a spiral guiding groove formed on the piston rod, and the screw guiding groove is fixed on the inner wall of the cylinder body with a finite position screw plug, and the limiting screw plug is caught in the spiral guiding groove and can be along the spiral guiding groove
  • the sliding, telescopic rotary hydraulic cylinder adds a matching spiral guiding groove and a limit pin between the piston rod and the cylinder block.
  • Cipheral Patent Publication No. CN105041758A discloses a rotary telescopic integrated hydraulic cylinder in which a piston rod passing through an upper end cover is provided in a main cylinder, an upper portion of a torque rotating shaft is inserted into a bottom portion of a piston rod, and a lower sleeve of the insertion portion is provided with a sliding sleeve.
  • the sliding sleeve is fixed with the piston rod, and the telescopic piston is arranged under the shoulder of the piston rod, the piston rod is rotated relative to the telescopic piston, the telescopic piston is moved and disposed in the main cylinder tube, and the cylinder barrel is fixed with a screw cylinder.
  • the middle and the lower part of the torque transmission shaft are located in the spiral cylinder, and the spiral cylinder is rotated to provide a spiral piston, and the lower part of the torque transmission shaft is screwed to the inner wall of the receiving chamber.
  • the part of the hydraulic cylinder of the present invention that realizes the rotating function is disposed in the main cylinder tube, and maintenance is not required.
  • the present invention can realize the rotation function while realizing the expansion and contraction, but the structure of the hydraulic cylinder is complicated and the manufacturing process is troublesome. Hydraulic cylinders are also unable to precisely control the purpose of rotation.
  • the present invention provides an integrated hydraulic cylinder having a telescopic and oscillating function.
  • the present invention also provides a method of using the above-described one-piece hydraulic cylinder having a telescopic and oscillating function.
  • An integrated hydraulic cylinder having a telescopic and oscillating function, the hydraulic cylinder comprising a cylinder bottom, a cylinder barrel, a cylinder head, a piston and a piston rod, the piston being disposed in the cylinder tube and including a cavity, characterized in that it further comprises a left end
  • the cover and the right end cover, the left end cover and the right end cover are respectively disposed on two sides of the piston, one end of the piston rod passes through the right end cover and is located in the cavity, and the other end passes out the cylinder head.
  • the piston rod and the left end cover are oppositely
  • a partition plate is arranged, and an axial hole leading to the cavity is opened on the piston rod.
  • the piston rod is provided with a disc, and the partition plate is disposed on one side of the disc.
  • the partition plate is provided with a first groove, and the two sides of the partition plate are provided with the axial hole. Radial holes.
  • the left end cover comprises a body, the partition plate is disposed on one side of the body, and the second groove is disposed on the partition plate.
  • the body is a stepped cylinder comprising two first cylinders and a second cylinder having different diameters, and the partition is located on the second cylinder.
  • the first cylinder is bolted to the piston.
  • a third recess is further disposed on the second cylinder, and the third recess is a circular recess and is located on one side of the partition.
  • two axial holes are arranged in the axial direction of the piston rod, and the radial holes on both sides of the partition plate are respectively communicated with the two axial holes.
  • a gasket is disposed in the first groove, the second groove and the third groove.
  • the gasket allows the hydraulic fluid to be truly sealed within the piston cavity to prevent leakage.
  • the hydraulic cylinder further comprises at least one guiding rod, and the two ends of the guiding rod are connected to the cylinder bottom and the cylinder head respectively after the piston.
  • a method for using an integrated hydraulic cylinder having a telescopic and oscillating function comprising the following steps,
  • the hydraulic cylinder When the piston rod needs to extend or contract, the hydraulic cylinder can be extended or contracted by the oil port to pressurize or relieve pressure.
  • the hydraulic cylinder sequentially passes through the axial hole and the radial hole. Hydraulic oil is input into the piston cavity, and the hydraulic oil has oil pressure between the two partitions, and the oil pressure pushes the diaphragm to rotate, thereby driving the piston rod to rotate.
  • the integrated hydraulic cylinder of the invention changes the structural form of the traditional hydraulic cylinder, and realizes the telescopic and swinging functions through the integrated hydraulic cylinder structure, thereby eliminating the disadvantages of the conventional hydraulic cylinder using two cylinders for oil to realize the expansion and swing function.
  • the hydraulic cylinder is more integrated, and the structural space of the hydraulic cylinder is reduced, thereby saving manufacturing costs;
  • the integrated hydraulic cylinder of the invention has independent swinging and telescopic movements, and the swinging function controls the swing angle of the piston rod more accurately by the oil hydraulic pressure, thereby improving the precision of the control, and can achieve precise positioning compared with the conventional hydraulic cylinder, and can satisfy some uses. A higher working environment is required.
  • the integrated hydraulic cylinder of the invention has the advantages of simple structure, ingenious design, convenient assembly and use, obvious effect and remarkable effect, good economic benefit and market value, and is worthy of popularization and application.
  • Figure 1 is a schematic structural view of an integrated hydraulic cylinder of the present invention
  • FIG. 2 is a schematic structural view of a left end cover according to the present invention.
  • Figure 3 is a schematic structural view of a piston rod of the present invention.
  • Figure 4 is a schematic view showing the structure of the piston rod and the left end cover in the present invention.
  • FIG. 5 is a partial structural schematic view of the piston rod, the left end cover and the piston in the present invention.
  • an integrated hydraulic cylinder having a telescopic and oscillating function includes a cylinder bottom 1, a cylinder 4, a cylinder head 7, a piston 3 and a piston rod 6, and the piston 3 is placed in the cylinder 4, and the piston 3 A cavity is included, and a left end cover 2 and a right end cover 15 are respectively mounted on both sides of the piston 3.
  • the piston rod 6 has one end running through the right end cover 15 and then passing through the cylinder cover 7 at the other end.
  • the left end cover 2 includes a body, the body is a stepped cylinder, and includes two first cylinders and a second cylinder having different diameters.
  • the first cylinder is provided with a bolt hole 11 and the left end cover is connected with the piston 3 by bolts.
  • a partition is provided on the second cylinder.
  • the piston rod is provided with a disc, a partition is arranged on one side of the disc, two axial holes 12 are defined in the axial direction of the piston rod, and a diameter communicating with the axial hole is arranged on both sides of the partition plate.
  • the baffle on the left end cap opposes the baffle on the piston rod, dividing the cavity into mutually independent first and second chambers. Left end cap The cooperation relationship with the piston rod is shown in Fig. 4.
  • the expansion and contraction of the piston in the cylinder is realized by the oil port on the cylinder of the hydraulic cylinder.
  • an oil pressure is formed between the piston rod and the left end cover in the cavity, and the oil pressure pushes the diaphragm on the piston rod to rotate, thereby driving the piston rod to rotate.
  • the invention realizes the expansion and contraction of the piston rod by different oil ports, and the telescopic and swing functions are independently controlled.
  • An integral hydraulic cylinder having a telescopic and oscillating function the structure is as described in Embodiment 1, except that the partition on the piston rod 6 is provided with a first groove 13 on the partition of the left end cover.
  • the second groove 9 is opened, and the third groove 10 is opened on the second cylinder.
  • the third groove 10 is a circular groove.
  • a gasket is disposed in each of the first groove 13, the second groove 9, and the third groove 10.
  • Two guiding rods 5 are further disposed in the cylinder 4 of the hydraulic cylinder.
  • the two guiding rods 5 are symmetrically disposed on the upper and lower sides of the cavity. After the guiding rod 5 penetrates the piston, the two ends thereof are respectively connected with the cylinder bottom and the cylinder head 7. connection.
  • the guide rod can restrict the rotation of the piston, and only the rotation of the piston rod can be realized, and the telescopic and swing functions can be independently controlled.
  • the hydraulic cylinder can be extended or contracted by the oil port to pressurize or release the pressure (the expansion process of the piston is the same as that of the existing piston), when the piston rod 6
  • the hydraulic cylinder sequentially inputs hydraulic oil into the cavity of the piston 3 through the axial hole 12 and the radial hole 14.
  • the hydraulic oil has oil pressure between the two partitions, and the hydraulic pressure pushes the partition to rotate. Thereby, the piston rod 6 is rotated; the guide rods 5 on the upper and lower sides function to restrict the rotation of the piston 3, and the piston 3 can only linearly expand and contract in the cylinder.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

Disclosed are an integrated hydraulic cylinder having a telescoping function and a swinging function and an application thereof. The hydraulic cylinder comprises a cylinder bottom (1), a cylinder barrel (4), a cylinder cap (7), a piston (3), and a piston rod (6). The piston (3) is disposed in the cylinder barrel (4) and comprises a cavity. A left end cover (2) and a right end cover (15) are respectively provided on two sides of the piston (3). One end of the piston rod (6) passes through the right end cover (15) to be situated in the cavity. Baffles are oppositely disposed on the piston rod (6) and the left end cover (2). An axial hole (12) leading to the cavity is opened on the piston rod (6). When oil is supplied through the axial hole (12), oil pressure formed between the baffles pushes the baffle on the piston rod (6) to drive the piston rod (6) to rotate. A telescoping function and a swinging function are implemented by an integrated hydraulic cylinder structure, so that a higher integration level is achieved and manufacturing costs are reduced. Moreover, the telescoping function and the swinging function are independent from each other, and the swinging is more accurate; thus, the control accuracy is improved and higher use requirements of a working environment are satisfied.

Description

一种具有伸缩和摆动功能的一体式液压缸及其应用Integrated hydraulic cylinder with telescopic and swinging function and application thereof 技术领域Technical field
本发明涉及一种具有伸缩和摆动功能的一体式液压缸及其应用,属于液压缸技术领域。The invention relates to an integrated hydraulic cylinder with a telescopic and swinging function and an application thereof, and belongs to the technical field of hydraulic cylinders.
背景技术Background technique
液压缸是将液压能转变为机械能、做直线往复运动(或摆动运动)的液压执行元件。它结构简单、工作可靠。用它来实现往复运动时,可免去减速装置,并且没有传动间隙,运动平稳,因此在各种机械的液压系统中得到广泛应用。目前的液压缸伸缩和摆动两个动作必须使用两个油缸来完成,这使得液压缸的制造成本增加,且占用的空间大。当前的伸缩兼转动机构大都采用电动或者气动,在有限空间内获得的力和力矩不够大,由于气体的可压缩性太大,气动摆动的机构通常都不能精确进行定位。The hydraulic cylinder is hydraulic energy into mechanical energy, linearly reciprocating movement (or swing movement) of the hydraulic actuators. It is simple in structure and reliable in operation. When it is used to realize the reciprocating motion, the speed reducing device can be eliminated, and there is no transmission gap, and the motion is stable, so it is widely used in various mechanical hydraulic systems . At present, the two movements of the hydraulic cylinder telescopic and swing must be completed using two cylinders, which increases the manufacturing cost of the hydraulic cylinder and takes up a large space. Most of the current telescopic and rotating mechanisms are electric or pneumatic, and the forces and moments obtained in a limited space are not large enough. Because the compressibility of the gas is too large, the mechanism of the pneumatic swing is usually not accurately positioned.
例如,中国专利文献CN202220769U公开了一种伸缩旋转式液压缸,其包括缸体、活塞及活塞杆,在活塞的两侧均设有活塞杆,活塞至少有一侧的活塞杆和缸体之间设置有旋转导向装置,旋转导向装置包括开设于活塞杆上的螺旋导向槽,配合螺旋导向槽于缸体内壁上固定有限位螺塞,限位螺塞卡在螺旋导向槽内且能沿螺旋导向槽滑动,伸缩旋转式液压缸于活塞杆和缸体之间增设相互配合的螺旋导向槽和限位销,当液压缸的活塞杆在做直线运动时,卡在螺旋导向槽内的限位销将驱使活塞杆同时发生转动,以实现活塞杆在做直线运动的同时完成旋转动作。此液压缸的虽然结构简单、动作可靠,但是活塞杆的旋转无法做到准确控制,对于一些旋转精度要求比较高的场合,无法满足其精度要求。For example, Chinese Patent Publication No. CN202220769U discloses a telescopic rotary hydraulic cylinder including a cylinder block, a piston and a piston rod, and a piston rod is arranged on both sides of the piston, and the piston is disposed between at least one piston rod and the cylinder block. The rotary guiding device comprises a spiral guiding groove formed on the piston rod, and the screw guiding groove is fixed on the inner wall of the cylinder body with a finite position screw plug, and the limiting screw plug is caught in the spiral guiding groove and can be along the spiral guiding groove The sliding, telescopic rotary hydraulic cylinder adds a matching spiral guiding groove and a limit pin between the piston rod and the cylinder block. When the piston rod of the hydraulic cylinder is in linear motion, the limit pin stuck in the spiral guiding groove will The piston rod is driven to rotate at the same time, so that the piston rod completes the rotating motion while performing a linear motion. Although the hydraulic cylinder has a simple structure and reliable operation, the rotation of the piston rod cannot be accurately controlled, and for some occasions where the rotation precision is relatively high, the accuracy requirement cannot be met.
中国专利文献CN105041758A公开了一种旋转伸缩一体化液压缸,在主缸筒内设有穿出上端盖的活塞杆,扭矩转动轴的上部插入活塞杆的底部,插入部分的下部套设有滑套,滑套与活塞杆固定,活塞杆的凸肩下方套设有伸缩活塞,活塞杆相对于伸缩活塞转动设置,伸缩活塞移动设置于主缸筒,缸筒无杆腔固定设有螺旋缸筒,扭矩传动轴的中部和下部均位于螺旋缸筒内,螺旋缸筒转动设置一个螺旋活塞,扭矩传动轴的下部螺纹连接于所述容纳腔内壁。本发明液压缸实现旋转功能的部分都设置在主缸筒内,无需对其进行维护保养,本发明虽然能够实现伸缩的同时实现旋转功能,但是该液压缸的结构复杂,制造工艺麻烦,同时该液压缸也无法做到精确控制旋转的目的。Chinese Patent Publication No. CN105041758A discloses a rotary telescopic integrated hydraulic cylinder in which a piston rod passing through an upper end cover is provided in a main cylinder, an upper portion of a torque rotating shaft is inserted into a bottom portion of a piston rod, and a lower sleeve of the insertion portion is provided with a sliding sleeve. The sliding sleeve is fixed with the piston rod, and the telescopic piston is arranged under the shoulder of the piston rod, the piston rod is rotated relative to the telescopic piston, the telescopic piston is moved and disposed in the main cylinder tube, and the cylinder barrel is fixed with a screw cylinder. The middle and the lower part of the torque transmission shaft are located in the spiral cylinder, and the spiral cylinder is rotated to provide a spiral piston, and the lower part of the torque transmission shaft is screwed to the inner wall of the receiving chamber. The part of the hydraulic cylinder of the present invention that realizes the rotating function is disposed in the main cylinder tube, and maintenance is not required. The present invention can realize the rotation function while realizing the expansion and contraction, but the structure of the hydraulic cylinder is complicated and the manufacturing process is troublesome. Hydraulic cylinders are also unable to precisely control the purpose of rotation.
因此,亟需设计一种具有伸缩和摆动功能的一体式液压缸,在满足伸缩和摆动功能 的前提下,又能够精确控制活塞杆的旋转角度。Therefore, it is urgent to design an integral hydraulic cylinder with telescopic and oscillating functions to meet the telescopic and oscillating functions. Under the premise, the rotation angle of the piston rod can be precisely controlled.
发明内容Summary of the invention
针对现有技术的不足,本发明提供一种具有伸缩和摆动功能的一体式液压缸。In view of the deficiencies of the prior art, the present invention provides an integrated hydraulic cylinder having a telescopic and oscillating function.
本发明还提供上述一种具有伸缩和摆动功能的一体式液压缸的使用方法。The present invention also provides a method of using the above-described one-piece hydraulic cylinder having a telescopic and oscillating function.
本发明的技术方案如下:The technical solution of the present invention is as follows:
一种具有伸缩和摆动功能的一体式液压缸,所述液压缸包括缸底、缸筒、缸盖、活塞和活塞杆,活塞设置在缸筒内并包含一空腔,其特征在于,还包括左端盖和右端盖,左端盖、右端盖分别设置在活塞的两侧,活塞杆的一端贯穿右端盖后位于空腔内、另一端穿出缸盖,在空腔内,活塞杆和左端盖上相对设置有隔板,活塞杆上开设有通向空腔的轴向孔,当轴向孔供油时,活塞杆上的隔板与左端盖上的隔板之间形成油液压力,油液压力推动活塞杆上的隔板进行旋转,从而带动活塞杆旋转。An integrated hydraulic cylinder having a telescopic and oscillating function, the hydraulic cylinder comprising a cylinder bottom, a cylinder barrel, a cylinder head, a piston and a piston rod, the piston being disposed in the cylinder tube and including a cavity, characterized in that it further comprises a left end The cover and the right end cover, the left end cover and the right end cover are respectively disposed on two sides of the piston, one end of the piston rod passes through the right end cover and is located in the cavity, and the other end passes out the cylinder head. In the cavity, the piston rod and the left end cover are oppositely A partition plate is arranged, and an axial hole leading to the cavity is opened on the piston rod. When the axial hole is supplied with oil, an oil pressure is formed between the partition plate on the piston rod and the partition plate on the left end cover, and the oil pressure Pushing the diaphragm on the piston rod to rotate, thereby driving the piston rod to rotate.
优选的,所述活塞杆上设有一圆盘,在圆盘的一侧设置所述的隔板,隔板上设置有第一凹槽,在隔板的两侧设置有与轴向孔相连通的径向孔。Preferably, the piston rod is provided with a disc, and the partition plate is disposed on one side of the disc. The partition plate is provided with a first groove, and the two sides of the partition plate are provided with the axial hole. Radial holes.
优选的,所述左端盖包括本体,在本体的一侧设置所述的隔板,在隔板上设置有第二凹槽。Preferably, the left end cover comprises a body, the partition plate is disposed on one side of the body, and the second groove is disposed on the partition plate.
优选的,所述本体为阶梯型圆柱体,包括两个直径不同的第一圆柱体和第二圆柱体,隔板位于第二圆柱体上。Preferably, the body is a stepped cylinder comprising two first cylinders and a second cylinder having different diameters, and the partition is located on the second cylinder.
优选的,所述第一圆柱体与活塞螺栓连接。Preferably, the first cylinder is bolted to the piston.
优选的,在所述第二圆柱体上还设置有第三凹槽,第三凹槽为一圆形凹槽并位于隔板一侧。Preferably, a third recess is further disposed on the second cylinder, and the third recess is a circular recess and is located on one side of the partition.
优选的,在活塞杆的轴向上设置两条所述的轴向孔,隔板两侧的径向孔分别与两条轴向孔连通。Preferably, two axial holes are arranged in the axial direction of the piston rod, and the radial holes on both sides of the partition plate are respectively communicated with the two axial holes.
优选的,在第一凹槽、第二凹槽及第三凹槽内均设置有密封垫。此设计的好处在于,密封垫可以使液压油在活塞空腔内实现真正的密封,防止泄露。Preferably, a gasket is disposed in the first groove, the second groove and the third groove. The benefit of this design is that the gasket allows the hydraulic fluid to be truly sealed within the piston cavity to prevent leakage.
优选的,所述液压缸还包括至少一个导杆,所述导杆贯穿活塞后其两端分别与缸底、缸盖连接。Preferably, the hydraulic cylinder further comprises at least one guiding rod, and the two ends of the guiding rod are connected to the cylinder bottom and the cylinder head respectively after the piston.
一种具有伸缩和摆动功能的一体式液压缸的使用方法,包括以下步骤,A method for using an integrated hydraulic cylinder having a telescopic and oscillating function, comprising the following steps,
当活塞杆需要伸出或收缩时,液压缸通过油口增压或泄压即可实现活塞杆的伸出或收缩,当活塞杆需要摆动时,液压缸依次通过轴向孔、径向孔向活塞空腔内输入液压油,液压油在两个隔板之间具有油液压力,油液压力推动隔板旋转,从而带动活塞杆旋转。 When the piston rod needs to extend or contract, the hydraulic cylinder can be extended or contracted by the oil port to pressurize or relieve pressure. When the piston rod needs to swing, the hydraulic cylinder sequentially passes through the axial hole and the radial hole. Hydraulic oil is input into the piston cavity, and the hydraulic oil has oil pressure between the two partitions, and the oil pressure pushes the diaphragm to rotate, thereby driving the piston rod to rotate.
本发明的有益效果在于:The beneficial effects of the invention are:
1.本发明一体式液压缸改变了传统液压缸的结构形式,将伸缩和摆动功能通过一体式液压缸结构实现,省去了传统液压缸采用两个油缸供油实现伸缩、摆动功能的弊端,该液压缸的集成度更高,同时减少了液压缸的结构空间,节省了制造成本;1. The integrated hydraulic cylinder of the invention changes the structural form of the traditional hydraulic cylinder, and realizes the telescopic and swinging functions through the integrated hydraulic cylinder structure, thereby eliminating the disadvantages of the conventional hydraulic cylinder using two cylinders for oil to realize the expansion and swing function. The hydraulic cylinder is more integrated, and the structural space of the hydraulic cylinder is reduced, thereby saving manufacturing costs;
2.本发明一体式液压缸摆动与伸缩动作相互独立,摆动功能通过油液压控制活塞杆的摆动角度更为准确,提高了控制的精度,相比传统液压缸能够实现精确定位,可满足一些使用要求较高的工作环境。2. The integrated hydraulic cylinder of the invention has independent swinging and telescopic movements, and the swinging function controls the swing angle of the piston rod more accurately by the oil hydraulic pressure, thereby improving the precision of the control, and can achieve precise positioning compared with the conventional hydraulic cylinder, and can satisfy some uses. A higher working environment is required.
3.本发明一体式液压缸结构简单、设计巧妙,使用组装方便,其作用明显、效果显著,具有良好的经济效益和市场价值,值得推广应用。3. The integrated hydraulic cylinder of the invention has the advantages of simple structure, ingenious design, convenient assembly and use, obvious effect and remarkable effect, good economic benefit and market value, and is worthy of popularization and application.
附图说明DRAWINGS
图1为本发明一体式液压缸的结构示意图;Figure 1 is a schematic structural view of an integrated hydraulic cylinder of the present invention;
图2为本发明中左端盖的结构示意图;2 is a schematic structural view of a left end cover according to the present invention;
图3为本发明中活塞杆的结构示意图;Figure 3 is a schematic structural view of a piston rod of the present invention;
图4为本发明中活塞杆与左端盖配合时的结构示意图;Figure 4 is a schematic view showing the structure of the piston rod and the left end cover in the present invention;
图5为本发明中活塞杆、左端盖、活塞配合时的局部结构示意图。FIG. 5 is a partial structural schematic view of the piston rod, the left end cover and the piston in the present invention.
其中:1、缸底;2、左端盖;3、活塞;4、缸筒;5、导杆;6、活塞杆;7、缸盖;8、导杆;9、第二凹槽;10、第三凹槽;11、螺栓孔;12、轴向孔;13、第一凹槽;14、径向孔;15、右端盖。Among them: 1, cylinder bottom; 2, left end cover; 3, piston; 4, cylinder; 5, guide rod; 6, piston rod; 7, cylinder head; 8, guide rod; 9, second groove; a third groove; 11, a bolt hole; 12, an axial hole; 13, a first groove; 14, a radial hole; 15, a right end cover.
具体实施方式detailed description
下面通过实施例并结合附图对本发明做进一步说明,但不限于此。The invention will be further illustrated by the following examples in conjunction with the accompanying drawings, but not limited thereto.
实施例1:Example 1:
如图1所示,一种具有伸缩和摆动功能的一体式液压缸,包括缸底1、缸筒4、缸盖7、活塞3和活塞杆6,活塞3放置在缸筒4内,活塞3包含一空腔,在活塞3的两侧分别安装有左端盖2和右端盖15,活塞杆6的一端贯穿右端盖15后位于空腔内、另一端穿出缸盖7。As shown in FIG. 1, an integrated hydraulic cylinder having a telescopic and oscillating function includes a cylinder bottom 1, a cylinder 4, a cylinder head 7, a piston 3 and a piston rod 6, and the piston 3 is placed in the cylinder 4, and the piston 3 A cavity is included, and a left end cover 2 and a right end cover 15 are respectively mounted on both sides of the piston 3. The piston rod 6 has one end running through the right end cover 15 and then passing through the cylinder cover 7 at the other end.
左端盖2包括本体,本体为阶梯型圆柱体,包括两个直径不同的第一圆柱体和第二圆柱体,第一圆柱体上开设有螺栓孔11,左端盖与活塞3通过螺栓连接,在第二圆柱体上设有隔板。活塞杆上设有一圆盘,在圆盘的一侧设置有隔板,在活塞杆的轴向上开设两条轴向孔12,在隔板的两侧设置有与轴向孔相连通的径向孔14。在空腔内,左端盖上的隔板与活塞杆上的隔板相对,将空腔分隔成相互独立的第一腔室、第二腔室。左端盖 与活塞杆的配合关系如图4所示。The left end cover 2 includes a body, the body is a stepped cylinder, and includes two first cylinders and a second cylinder having different diameters. The first cylinder is provided with a bolt hole 11 and the left end cover is connected with the piston 3 by bolts. A partition is provided on the second cylinder. The piston rod is provided with a disc, a partition is arranged on one side of the disc, two axial holes 12 are defined in the axial direction of the piston rod, and a diameter communicating with the axial hole is arranged on both sides of the partition plate. To the hole 14. Within the cavity, the baffle on the left end cap opposes the baffle on the piston rod, dividing the cavity into mutually independent first and second chambers. Left end cap The cooperation relationship with the piston rod is shown in Fig. 4.
本实施例所述的液压缸,通过液压缸缸筒上的油口实现活塞在缸筒内的伸缩。通过向轴向孔供油,在空腔内活塞杆与左端盖之间形成油液压力,油液压力推动活塞杆上的隔板进行旋转,从而带动活塞杆旋转。本发明通过不同的油口分别实现活塞杆的伸缩、摆动,其伸缩和摆动功能相互独立控制。In the hydraulic cylinder described in this embodiment, the expansion and contraction of the piston in the cylinder is realized by the oil port on the cylinder of the hydraulic cylinder. By supplying oil to the axial hole, an oil pressure is formed between the piston rod and the left end cover in the cavity, and the oil pressure pushes the diaphragm on the piston rod to rotate, thereby driving the piston rod to rotate. The invention realizes the expansion and contraction of the piston rod by different oil ports, and the telescopic and swing functions are independently controlled.
实施例2:Example 2:
一种具有伸缩和摆动功能的一体式液压缸,结构如实施例1所述,其不同之处在于:在活塞杆6上的隔板开设有第一凹槽13,在左端盖的隔板上开设有第二凹槽9,在第二圆柱体上开设有第三凹槽10,第三凹槽10为圆形凹槽,当活塞杆6与左端盖2配合安装时,活塞杆的一端面与圆形凹槽相接触。An integral hydraulic cylinder having a telescopic and oscillating function, the structure is as described in Embodiment 1, except that the partition on the piston rod 6 is provided with a first groove 13 on the partition of the left end cover. The second groove 9 is opened, and the third groove 10 is opened on the second cylinder. The third groove 10 is a circular groove. When the piston rod 6 is fitted with the left end cover 2, one end surface of the piston rod Contact with a circular groove.
在第一凹槽13、第二凹槽9及第三凹槽10内均设置有密封垫。通过在凹槽内增设密封垫,可以使液压油在活塞空腔内实现真正的密封,防止泄露,使第一腔室和第二腔室真正做到相互隔绝,防止出现串油,影响其旋转精度的控制。A gasket is disposed in each of the first groove 13, the second groove 9, and the third groove 10. By adding a gasket in the groove, the hydraulic oil can be truly sealed in the piston cavity to prevent leakage, so that the first chamber and the second chamber are truly isolated from each other, preventing the occurrence of oil and affecting the rotation thereof. Precision control.
实施例3:Example 3:
一种具有伸缩和摆动功能的一体式液压缸,结构如实施例2所述,其不同之处在于:An integrated hydraulic cylinder with telescopic and oscillating functions, the structure is as described in Embodiment 2, and the difference is:
在液压缸的缸筒4内还设置有两个导杆5,两个导杆5对称设置在空腔的上下两侧,导杆5贯穿活塞后其两端分别与缸底1、缸盖7连接。在向轴向孔供油,实现活塞杆摆动功能时,导杆能够限制活塞发生旋转,只实现活塞杆的旋转,实现伸缩、摆动功能的相互独立控制。Two guiding rods 5 are further disposed in the cylinder 4 of the hydraulic cylinder. The two guiding rods 5 are symmetrically disposed on the upper and lower sides of the cavity. After the guiding rod 5 penetrates the piston, the two ends thereof are respectively connected with the cylinder bottom and the cylinder head 7. connection. When the oil is supplied to the axial hole to realize the swinging function of the piston rod, the guide rod can restrict the rotation of the piston, and only the rotation of the piston rod can be realized, and the telescopic and swing functions can be independently controlled.
实施例4:Example 4:
一种如实施例3所述的具有伸缩和摆动功能的一体式液压缸的使用方法,包括以下步骤,A method for using an integrated hydraulic cylinder having a telescopic and oscillating function as described in Embodiment 3, comprising the following steps,
当活塞杆6需要伸出或收缩时,液压缸通过油口增压或泄压即可实现活塞杆的伸出或收缩(活塞的伸缩过程与现有活塞的运动过程相同),当活塞杆6需要摆动时,液压缸依次通过轴向孔12、径向孔14向活塞3空腔内输入液压油,液压油在两个隔板之间具有油液压力,油液压力推动隔板进行旋转,从而使活塞杆6旋转;上下两侧的导杆5起到限制活塞3转动的作用,活塞3只能在缸筒内进行直线伸缩。 When the piston rod 6 needs to be extended or contracted, the hydraulic cylinder can be extended or contracted by the oil port to pressurize or release the pressure (the expansion process of the piston is the same as that of the existing piston), when the piston rod 6 When the swinging is required, the hydraulic cylinder sequentially inputs hydraulic oil into the cavity of the piston 3 through the axial hole 12 and the radial hole 14. The hydraulic oil has oil pressure between the two partitions, and the hydraulic pressure pushes the partition to rotate. Thereby, the piston rod 6 is rotated; the guide rods 5 on the upper and lower sides function to restrict the rotation of the piston 3, and the piston 3 can only linearly expand and contract in the cylinder.

Claims (10)

  1. 一种具有伸缩和摆动功能的一体式液压缸,所述液压缸包括缸底、缸筒、缸盖、活塞和活塞杆,活塞设置在缸筒内并包含一空腔,其特征在于,还包括左端盖和右端盖,左端盖、右端盖分别设置在活塞的两侧,活塞杆的一端贯穿右端盖后位于空腔内、另一端穿出缸盖,在空腔内,活塞杆和左端盖上相对设置有隔板,活塞杆上开设有通向空腔的轴向孔,当轴向孔供油时,活塞杆上的隔板与左端盖上的隔板之间形成油液压力,油液压力推动活塞杆上的隔板进行旋转,从而带动活塞杆旋转。An integrated hydraulic cylinder having a telescopic and oscillating function, the hydraulic cylinder comprising a cylinder bottom, a cylinder barrel, a cylinder head, a piston and a piston rod, the piston being disposed in the cylinder tube and including a cavity, characterized in that it further comprises a left end The cover and the right end cover, the left end cover and the right end cover are respectively disposed on two sides of the piston, one end of the piston rod passes through the right end cover and is located in the cavity, and the other end passes out the cylinder head. In the cavity, the piston rod and the left end cover are oppositely A partition plate is arranged, and an axial hole leading to the cavity is opened on the piston rod. When the axial hole is supplied with oil, an oil pressure is formed between the partition plate on the piston rod and the partition plate on the left end cover, and the oil pressure Pushing the diaphragm on the piston rod to rotate, thereby driving the piston rod to rotate.
  2. 如权利要求1所述的具有伸缩和摆动功能的一体式液压缸,其特征在于,所述活塞杆上设有一圆盘,在圆盘的一侧设置所述的隔板,隔板上设置有第一凹槽,在隔板的两侧设置有与轴向孔相连通的径向孔。The integrated hydraulic cylinder having a telescopic and oscillating function according to claim 1, wherein the piston rod is provided with a disc, and the partition plate is disposed on one side of the disc, and the partition plate is provided with The first groove is provided with radial holes communicating with the axial holes on both sides of the partition.
  3. 如权利要求2所述的具有伸缩和摆动功能的一体式液压缸,其特征在于,所述左端盖包括本体,在本体的一侧设置所述的隔板,在隔板上设置有第二凹槽。The integrated hydraulic cylinder having a telescopic and oscillating function according to claim 2, wherein said left end cover comprises a body, said partition is disposed on one side of said body, and said second concave is disposed on said partition groove.
  4. 如权利要求3所述的具有伸缩和摆动功能的一体式液压缸,其特征在于,所述本体为阶梯型圆柱体,包括两个直径不同的第一圆柱体和第二圆柱体,隔板位于第二圆柱体上。The integrated hydraulic cylinder having a telescopic and oscillating function according to claim 3, wherein the body is a stepped cylinder comprising two first cylinders and a second cylinder having different diameters, and the partition is located On the second cylinder.
  5. 如权利要求4所述的具有伸缩和摆动功能的一体式液压缸,其特征在于,所述第一圆柱体与活塞螺栓连接。The integrated hydraulic cylinder having a telescopic and oscillating function according to claim 4, wherein said first cylinder is bolted to the piston.
  6. 如权利要求4所述的具有伸缩和摆动功能的一体式液压缸,其特征在于,在所述第二圆柱体上还设置有第三凹槽,第三凹槽为一圆形凹槽并位于隔板一侧。An integrated hydraulic cylinder having a telescopic and oscillating function according to claim 4, wherein a third groove is further disposed on the second cylinder, and the third groove is a circular groove and is located One side of the partition.
  7. 如权利要求2所述的具有伸缩和摆动功能的一体式液压缸,其特征在于,在活塞杆的轴向上设置两条所述的轴向孔,隔板两侧的径向孔分别与两条轴向孔连通。An integrated hydraulic cylinder having a telescopic and oscillating function according to claim 2, wherein two axial holes are provided in the axial direction of the piston rod, and the radial holes on both sides of the partition are respectively The axial holes are connected.
  8. 如权利要求6所述的具有伸缩和摆动功能的一体式液压缸,其特征在于,在第一凹槽、第二凹槽及第三凹槽内均设置有密封垫。The integrated hydraulic cylinder having a telescopic and oscillating function according to claim 6, wherein a gasket is disposed in each of the first groove, the second groove and the third groove.
  9. 如权利要求1所述的具有伸缩和摆动功能的一体式液压缸,其特征在于,所述液压缸还包括至少一个导杆,所述导杆贯穿活塞后其两端分别与缸底、缸盖连接。The integrated hydraulic cylinder with telescopic and oscillating functions according to claim 1, wherein the hydraulic cylinder further comprises at least one guide rod, and the two ends of the guide rod penetrate the piston and the cylinder bottom and the cylinder head respectively connection.
  10. 一种如权利要求1-9任一项所述的具有伸缩和摆动功能的一体式液压缸的使用方法,包括以下步骤,A method of using an integrated hydraulic cylinder having a telescopic and oscillating function according to any one of claims 1-9, comprising the following steps,
    当活塞杆需要伸出或收缩时,液压缸通过油口增压或泄压即可实现活塞杆的伸出或收缩,当活塞杆需要摆动时,液压缸依次通过轴向孔、径向孔向活塞空腔内输入液压油,液 压油在两个隔板之间具有油液压力,油液压力推动隔板旋转,从而带动活塞杆旋转。 When the piston rod needs to extend or contract, the hydraulic cylinder can be extended or contracted by the oil port to pressurize or relieve pressure. When the piston rod needs to swing, the hydraulic cylinder sequentially passes through the axial hole and the radial hole. Hydraulic oil, liquid input into the piston cavity The oil pressure has an oil pressure between the two partitions, and the oil pressure pushes the diaphragm to rotate, thereby driving the piston rod to rotate.
PCT/CN2016/084698 2015-12-30 2016-06-03 Integrated hydraulic cylinder having telescoping function and swinging function and application thereof WO2017113606A1 (en)

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CN111114657A (en) * 2019-12-19 2020-05-08 长春一东汽车零部件制造有限责任公司 Cab turnover mechanical cylinder
CN111114657B (en) * 2019-12-19 2024-05-28 长春一东汽车零部件制造有限责任公司 Cab overturning mechanical cylinder
CN114151410A (en) * 2021-12-09 2022-03-08 建湖县八达液压机械有限公司 Quick-cooling hydraulic oil cylinder for lifter
CN114151410B (en) * 2021-12-09 2023-07-25 建湖县八达液压机械有限公司 Quick-cooling hydraulic cylinder for lifter
CN114633279A (en) * 2022-05-12 2022-06-17 杭州景业智能科技股份有限公司 Hydraulic driving structure and hydraulic clamping jaw
CN117428815A (en) * 2023-12-21 2024-01-23 浙江大学 Two-degree-of-freedom compact hydraulic paw for heavy-duty application
CN117428815B (en) * 2023-12-21 2024-04-05 浙江大学 Two-degree-of-freedom compact hydraulic paw for heavy-duty application

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